#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> ii;
ll dp[20][11][11][2][2][2];
string A, B;
ll f(int pos, int a, int b, bool fa, bool fb, bool start) {
if(pos == B.size()) return 1;
ll &ret = dp[pos][a][b][fa][fb][start];
if(~ret) return ret;
ret = 0;
int l = 0, r = 9;
if(!fa) l = A[pos] - '0';
if(!fb) r = B[pos] - '0';
for(int i = l; i <= r; i++) {
if(i == a || i == b) continue;
if(!i && start) {
ret += f(pos + 1, 10, 10, fa | (i > l), fb | (i < r), 1);
} else {
ret += f(pos + 1, b, i, fa | (i > l), fb | (i < r), 0);
}
} return ret;
}
int main(int argc, char const *argv[]) {
ll a, b;
scanf("%lld %lld", &a, &b);
A = to_string(a);
B = to_string(b);
while(A.size() < B.size()) A = "0" + A;
memset(dp, -1, sizeof dp);
printf("%lld\n", f(0, 10, 10, 0, 0, 1));
}
Compilation message
numbers.cpp: In function 'll f(int, int, int, bool, bool, bool)':
numbers.cpp:11:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pos == B.size()) return 1;
~~~~^~~~~~~~~~~
numbers.cpp: In function 'int main(int, const char**)':
numbers.cpp:31:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld", &a, &b);
~~~~~^~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
484 KB |
Output is correct |
| 3 |
Correct |
2 ms |
648 KB |
Output is correct |
| 4 |
Correct |
3 ms |
648 KB |
Output is correct |
| 5 |
Correct |
3 ms |
676 KB |
Output is correct |
| 6 |
Correct |
2 ms |
724 KB |
Output is correct |
| 7 |
Correct |
3 ms |
724 KB |
Output is correct |
| 8 |
Correct |
3 ms |
724 KB |
Output is correct |
| 9 |
Correct |
3 ms |
748 KB |
Output is correct |
| 10 |
Correct |
3 ms |
748 KB |
Output is correct |
| 11 |
Correct |
3 ms |
748 KB |
Output is correct |
| 12 |
Correct |
3 ms |
748 KB |
Output is correct |
| 13 |
Correct |
2 ms |
748 KB |
Output is correct |
| 14 |
Correct |
2 ms |
748 KB |
Output is correct |
| 15 |
Correct |
5 ms |
748 KB |
Output is correct |
| 16 |
Correct |
3 ms |
748 KB |
Output is correct |
| 17 |
Correct |
3 ms |
748 KB |
Output is correct |
| 18 |
Correct |
3 ms |
748 KB |
Output is correct |
| 19 |
Correct |
3 ms |
748 KB |
Output is correct |
| 20 |
Correct |
3 ms |
748 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
748 KB |
Output is correct |
| 2 |
Correct |
3 ms |
748 KB |
Output is correct |
| 3 |
Correct |
4 ms |
748 KB |
Output is correct |
| 4 |
Correct |
2 ms |
748 KB |
Output is correct |
| 5 |
Correct |
2 ms |
748 KB |
Output is correct |
| 6 |
Correct |
0 ms |
748 KB |
Output is correct |
| 7 |
Correct |
3 ms |
748 KB |
Output is correct |
| 8 |
Correct |
1 ms |
748 KB |
Output is correct |
| 9 |
Correct |
3 ms |
748 KB |
Output is correct |
| 10 |
Correct |
5 ms |
748 KB |
Output is correct |
| 11 |
Correct |
3 ms |
748 KB |
Output is correct |
| 12 |
Correct |
3 ms |
748 KB |
Output is correct |
| 13 |
Correct |
2 ms |
748 KB |
Output is correct |
| 14 |
Correct |
5 ms |
748 KB |
Output is correct |
| 15 |
Correct |
4 ms |
748 KB |
Output is correct |
| 16 |
Correct |
2 ms |
748 KB |
Output is correct |
| 17 |
Correct |
3 ms |
748 KB |
Output is correct |
| 18 |
Correct |
3 ms |
748 KB |
Output is correct |
| 19 |
Correct |
4 ms |
752 KB |
Output is correct |
| 20 |
Correct |
3 ms |
752 KB |
Output is correct |
| 21 |
Correct |
4 ms |
752 KB |
Output is correct |
| 22 |
Correct |
3 ms |
752 KB |
Output is correct |
| 23 |
Correct |
3 ms |
752 KB |
Output is correct |
| 24 |
Correct |
2 ms |
752 KB |
Output is correct |
| 25 |
Correct |
3 ms |
752 KB |
Output is correct |
| 26 |
Correct |
3 ms |
752 KB |
Output is correct |
| 27 |
Correct |
3 ms |
752 KB |
Output is correct |
| 28 |
Correct |
3 ms |
752 KB |
Output is correct |
| 29 |
Correct |
3 ms |
752 KB |
Output is correct |
| 30 |
Correct |
4 ms |
752 KB |
Output is correct |
| 31 |
Correct |
3 ms |
752 KB |
Output is correct |
| 32 |
Correct |
2 ms |
752 KB |
Output is correct |
| 33 |
Correct |
3 ms |
752 KB |
Output is correct |
| 34 |
Correct |
3 ms |
752 KB |
Output is correct |
| 35 |
Correct |
3 ms |
752 KB |
Output is correct |
| 36 |
Correct |
4 ms |
764 KB |
Output is correct |
| 37 |
Correct |
3 ms |
764 KB |
Output is correct |
| 38 |
Correct |
3 ms |
764 KB |
Output is correct |
| 39 |
Correct |
3 ms |
764 KB |
Output is correct |
| 40 |
Correct |
3 ms |
764 KB |
Output is correct |
| 41 |
Correct |
3 ms |
768 KB |
Output is correct |
| 42 |
Correct |
3 ms |
768 KB |
Output is correct |
| 43 |
Correct |
2 ms |
868 KB |
Output is correct |
| 44 |
Correct |
3 ms |
868 KB |
Output is correct |
| 45 |
Correct |
4 ms |
868 KB |
Output is correct |
